1855 New York State Census, Springfield (town), Otsego Co.
Benjamin Jackson 50 M Rennsselaer Married 2yrs Carpenter
Betsy Jackson 50 F Wife Otsego Married 2yrs
Egbert D. Jackson 13 M son Otsego - 2yrs
(Benjamin and Betsy are living 2 households from son Leonard who has lived in Springfield longer than his parents.)

https://familysearch.org/ark:/61903/1:1:QJDR-YRTT : accessed 30 September 2015
Egbert G Jackson
United States Registers of Enlistments in the U.S. Army
Name Egbert G Jackson
Event Type Military Service
Event Date 04 Mar 1862
Event Place Cooperstown, , , United States
Age 20
Birth Year (Estimated) 1842
Volume Number 142
Page 398